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Sedum formosanum subsp. miyakojimense (Crassulaceae), a new subspecies from Miyako-jima Island of the Ryukyu Islands, Japan

by: Ito, Takuro; Yu, Chih-Chieh; Yokota, Masatsugu; Kokubugata, Goro

Publication date: 2020-5-26
Usage: Attribution 4.0 International
Topics: Miyako Islands, phylogeny, stone crop, succulent plants, taxonomy
Publisher: Pensoft Publishers
Collection: biodiversity
Contributor: Pensoft Publishers
Language: English
Rights: https://biodiversitylibrary.org/permissions
Rights-holder: Copyright held by individual article author(s).
Volume: 148
Item Size: 24.5M

Abstract: We re-examined the taxonomic status of plants treated as Sedum formosanum (Crassulaceae) from Miyako-jima Island of the Ryukyu Islands, Japan, using morphological comparison and molecular phylogenetic analyses with related species. In morphology, plants from Miyako-jima Island bore a close resemblance to the other plants of S. formosanum, but differed in being perennial, polycarpic, and having lateral axillary branches. Molecular analyses based on ITS of nrDNA and six regions of cpDNA sequencing indicated that the Miyako-jima plants formed a distinct subclade. This subclade was part of a polytomy with three other subclades comprising nine taxa endemic to Taiwan and S. formosanum from other areas, including the type locality. Therefore, we propose and describe the Miyako-jima plants as a new subspecies, Sedum formosanum subsp. miyakojimense.
Addeddate: 2025-05-01 18:06:08
Bhl_virtual_titleid: 210913
Bhl_virtual_volume: v.148 (2020)
Call number: 10_3897_phytokeys_148_48957
Call-number: 10_3897_phytokeys_148_48957
Foldoutcount: 0
Genre: article
Identifier: sedumformosanum148itot
Identifier-ark: ark:/13960/s205rwfrzbc
Identifier-bib: 10_3897_phytokeys_148_48957
Identifier-doi: 10.3897/phytokeys.148.48957
Ocr: tesseract 5.3.0-6-g76ae
Ocr_detected_lang: en
Ocr_detected_lang_conf: 1.0000
Ocr_detected_script: Latin
Ocr_detected_script_conf: 1.0000
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Page_range: 51-70
Pages: 20
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Possible copyright status: In copyright. Digitized with the permission of the rights holder.
Ppi: 300
Source: PhytoKeys 148
Year: 2020